Vania



J; MAZER.

ACOUSTIC ELEMENT. APPLICATION HLE'D ocr. 2. 191e.

1,318,574. Patented 0ct..14,1919.

l 'n I #Firma 3 pmu K l UNITED sTA-TEs PATENT OFFICE.

JACOB MAzEE, or PITTSBURGH, PENNSYLVANIA,` AssIGNoR. To MAzEE AooUsTILE comzPANY, or PHILADELPHIA, PENNSYLVANIA, A .coEPoEATIoNoE PENNSYL- VANI-A.

ACOUSTIC ELEMENT.

Specication of Letters Patent.

Patented oe. 14, 1919.

y To all whom t may concern.'

`Be it known that I, JACOB MA'ZER, a citizen of the United States, and resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Acoustic Eley ,Inents, (Case 2;) and I do hereby declare lthe following to be a full, clear, and exact description thereof.

My invention relates to an acoustic element and is particularly concerned with the provision of the improvedelement which may be employed in improving the acoustic properties of churches, auditoriums or other apartments.

The object of myinvention'is to provide an acoustic element or uniti-that may be installed without the employment of skilled labor, and of suiii'cient tensile strength to withstand the ordinary handling to which such material `is subjected in transit or in being attached to the wall surface.

In the accompanying drawing Figure 1 is a perspective view showing the ivided sections, and Fig. 2 is a cross-sectional view.`

In the drawing the numeral 8 indicates a felt layer with a backing 9 of corrugated material which may be formed of asbestos board, ber board or any other material having suiiieient 'body and coherence to rey tain its shape so that the acoustic unit comf bined therewith may not be distorted or twisted out of shape. The fibrous material or felt 8 may be secured to this corrugated backing 'in any suitable manner either by an adhesive substance or by wire staples 10 or the like. The units are of a convenient size for handling. The numeral 11 indicates the lines of separation between the diierent sheets of units. The combined backing and fibrous acoustic material may be handled without danger or changing the shape of the unit or altering its acoustic value. Moreover the backing affords a sub? stantial means for fastening the unit to the wall. It further affords the necessary tensile strength which is lacking in the ibrous material, and so enables the units to be handled without being impaired or distorted, or its acoustic value impaired.

What I claim is:

A self contained acoustic element -coinprising a foundation member constructed to form air spaces at one side of the element, and to afford sufficient tensile strength thereto for the necessary handling of the element and maintain the same unimpaired by said handling, and a layer or covering of iibrous materlal secured to said foundation material and which layer 'is of such loosely associated ber as of' itself to lack suicient tensile strength for handling.

In testimony whereof I, the said JACOB MAzER, have hereunto set my hand.

' JACOB MAZER.

Witnesses:

J oHN F. WILL, J. fR. KELLER. 

